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2.5 Data presentation and interpretation

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Question 33

An aerodynamicist, Dr. Sterling, is investigating the relationship between the angle of attack, θ\thetaθ (degrees), and the lift coefficient, CLC_LCL​, of a prototype wing across 42 wind tunnel trials. After processing the experimental data, he calculates the product moment correlation coefficient (PMCC) to be −1.14-1.14−1.14.

Which of the following statements best describes this calculated result?

  • Definitely incorrect
  • Probably incorrect
  • Probably correct
  • Definitely correct
[2]
Markscheme

2.5 Data presentation and interpretation Questions

  1. A Level
  2. /Maths
  3. /2.5 Data presentation and interpretation

278 exam-style questions on CCEA A Level Maths 2.5 Data presentation and interpretation, covering 2.5.1 Data presentation and interpretation, 2.5.2 Data presentation and interpretation, 2.5.3 Data presentation and interpretation, 2.5.4 Data presentation and interpretation, 2.5.5 Data presentation and interpretation, 2.5.6 Data presentation and interpretation, 2.5.7 Data presentation and interpretation, 2.5.8 Data presentation and interpretation, 2.5.9 Data presentation and interpretation, and 2.5 Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.

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